Ustya may refer to:
Ustya, Russia, alternative name of several rural localities in Moscow Oblast, Russia Ustya (river), a stream in Arkhangelsk Oblast of Russia Ustya, a diminutive of the Russian female first name Avgusta Ustya, a diminutive of the Russian male first name Avgustin Ustya, a diminutive of the Russian female first name Avgustina
See also Ustia (disambiguation) Ustye, several rural localities in Russia Ustyansky District, a district of Arkhangelsk Oblast, Russia